149745894 has 64 divisors (see below), whose sum is σ = 326592000. Its totient is φ = 45598208.

The previous prime is 149745889. The next prime is 149745907. The reversal of 149745894 is 498547941.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 896599 + ... + 896765.

It is an arithmetic number, because the mean of its divisors is an integer number (5103000).

Almost surely, 2^149745894 is an apocalyptic number.

149745894 is an abundant number, since it is smaller than the sum of its proper divisors (176846106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149745894 is a wasteful number, since it uses less digits than its factorization.

149745894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397.

The product of its digits is 1451520, while the sum is 51.

The square root of 149745894 is about 12237.0704827585. The cubic root of 149745894 is about 531.0290839897.

The spelling of 149745894 in words is "one hundred forty-nine million, seven hundred forty-five thousand, eight hundred ninety-four".